* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background: #f5f7fa;
  color: #222;
  line-height: 1.6;
}

header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 10;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  color: #0f62fe;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

nav a:hover {
  color: #0f62fe;
}

.btn {
  display: inline-block;
  background: #0f62fe;
  color: #fff;
  padding: 10px 18px;
  border-radius: 6px;
  text-decoration: none;
  transition: 0.3s;
}

.btn:hover {
  background: #0944b3;
}

/* Hero */
.hero {
  text-align: center;
  padding: 4rem 1rem;
  background: linear-gradient(to right, #e3eeff, #f5f9ff);
}

.hero h1 {
  font-size: 2rem;
  color: #111;
}

.hero span {
  color: #0f62fe;
}

.hero p {
  margin: 1rem 0;
  color: #555;
}

/* Features */
.features {
  padding: 3rem 0;
  text-align: center;
}

.features h2 {
  margin-bottom: 1.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}

.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* Gallery */
.gallery {
  text-align: center;
  padding: 3rem 0;
}

.slider {
  position: relative;
  max-width: 700px;
  margin: 2rem auto;
  overflow: hidden;
  border-radius: 10px;
}

.slide {
  display: none;
  width: 100%;
  border-radius: 10px;
}

.slide.active {
  display: block;
}

/* Pricing */
.pricing {
  text-align: center;
  padding: 3rem 0;
}

.pricing-box {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.plan {
  background: #fff;
  padding: 2rem;
  border-radius: 10px;
  width: 250px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.plan.featured {
  border: 2px solid #0f62fe;
}

.price {
  font-size: 2rem;
  color: #0f62fe;
  margin: 0.5rem 0;
}

/* Contact */
.contact {
  text-align: center;
  padding: 3rem 0;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

input, textarea {
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

footer {
  text-align: center;
  padding: 1.5rem 0;
  background: #fff;
  margin-top: 2rem;
}

/* Dark Mode */
body.dark {
  background: #0b1020;
  color: #e8ebf0;
}

body.dark header {
  background: #10182f;
}

body.dark .card,
body.dark .plan {
  background: #18243f;
  color: #e8ebf0;
}

body.dark a {
  color: #9cc9ff;
}